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Finding the Fourth Proportional to 52,080.70, 71,871.34 and 28,207.37

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Solution

The fourth proportional to 52,080.70, 71,871.34 and 28,207.37 is: 38,926.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,080.70 : 71,871.34 = 28,207.37 : x
  2. Step 2: Convert to fraction form
    52,080.70/71,871.34 = 28,207.37/x
  3. Step 3: Cross multiply
    52,080.70x = 71,871.34 × 28,207.37
  4. Step 4: Simplify right side
    52,080.70x = 2,027,301,479.78
  5. Step 5: Solve for x
    x = 2,027,301,479.78/52,080.70
  6. Step 6: Final answer
    x = 38,926.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.